Algorithms 2.1

Algorithms 2.1

1. Pseudocode

   • It mimics how your code may look in the programming language BUT doesn't have to be exact
   • Comparison operators
     • == Equal to
     • != Not equal to
     • < Less than
     • <= less than or equal to
     • > greater than
     • >= Greater than or equal to
   • Arithmetic operators
     • + Add
     • - Subtract
     • / Divide
     • * Multiply
   • Useful terms to use
     • START
     • IF
     • ELIF
     • ELSE
     • FOR
     • WHILE TRUE
     • ENDIF
     • END
   • What is pseudocode?
     • There is no "Correct" way to write it
     • It's not an actual programming language
     • It's a way to write out algorithms using code-like statements

2. Flowcharts

   • Instructions
     • START/STOP
       • Always start and end with this
     • INPUT/OUTPUT
       • Use when an input or output required
     • Decision e.g. Is A>10? yes or no
       • When a choice has to be made in the program
     • SUB ROUTINE
       • Sequence that performs a specific task
     • Process
       • To do something in the program e.g. calculation
     • Flow line
       • show the flow of info in the algorithim